Rice Cultivation and Mosquitoes

ARB Rice Cultivation Compliance Offset Protocol 3rd Technical Working Group Meeting

October 1, 2013

Joel Buettner, General Manager

District Mission

“To effectively and efficiently manage the risks from vectors and vector-borne disease in order

to protect public health and quality of life in Placer County”

Adulticides

Larvicides

Biological Control

Source Reduction

Prevents Public Health Threats

Reduces Immediate

public health

Integrated Pest Management

Mosquito Life Cycle

Mosquito Reduction Best Management Practices (BMPs)

1. Reduce or eliminate standing water where feasible

2. Reduce or manage emergent vegetation to limit vector production and enhance control measures

3. Ensure timely access to mosquito sources for inspection and appropriate treatment

4. Provide timely information to District to coordinate water management with mosquito prevention and treatment operations

Mosquito Reduction BMPs for Rice

• Notify MVCD regarding location of active and fallow fields prior to flooding. Specify organic or conventional production.

• Inspect and repair levees and control structures to minimize

seepage • Minimize emergent vegetation (weeds) along levees, on exterior

areas of the field, and in fallow fields. • Notify MVCD prior to any pesticide applications that may be toxic

to mosquito fish or contain propanil. • Maintain borrow pits (12"-18" deep) on both sides of each check

throughout rice fields to provide refuge for mosquito fish during low water periods. –ORGANIC RICE